# Symbol Epsilon

From NARS2000

(Redirected from ∊)

Jump to navigationJump to search# ∊ — **is an Element of** — Keystroke is usually Alt-e; Character(⎕UCS) 8714

## Usage

## Examples

5 ∊ 1 2 3 4 5 ⍝ determine if 5 is an element of the set of numbers from 1 through 5, result just below 1 = Yes or true, so 5 IS an element of 1 through 5. 1 1 2 3 4 5 ∊ 5 ⍝ determine if the set of numbers from 1 through 5 contains the integer 5. Results 0=False, 1=True 0 0 0 0 1 (⍳5) ∊ 5 ⍝ determine if the set of numbers from 1 through 5 (iota 5) contains the integer 5. 0 0 0 0 1 'this is text' ∊ 't' ⍝ determine if a text phrase contains the letter 't', 1=True, 0=False 1 0 0 0 0 0 0 0 1 0 0 1

## See Also

NARS 2000 Lang Tool Bar |
← | → | + | - | × | ÷ | * | ⍟ | ⌹ | ○ | ! | ? | √ | | | ⌈ | ⌊ | ⊥ | ⊤ | ⊣ | ⊢ | |||

≡ | ≢ | < | ≤ | = | ≥ | > | ≠ | ∨ | ∧ | ⍱ | ⍲ | ↑ | ↓ | ⊂ | ⊃ | ⌷ | ⍋ | ⍒ | |||||

⍳ | ∊ | ⍸ | ⍷ | ∪ | ∩ | ⊆ | ⊇ | ~ | § | π | .. | , | ⍪ | ⍴ | ⌽ | ⊖ | ⍉ | ||||||

/ | \ | ⌿ | ⍀ | ⊙ | ¨ | ⍨ | ⍤ | ⍣ | ⍡ | ⍥ | ⍦ | ⍥ | . | ∘ | ⍠ | ‼ | ⌻ | ∂ | ⍞ | ⎕ | ⍎ | ⍕ | |

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